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555-605 Level|   Graphs|   Math Related|            
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GMATCoachBen
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The graph shows data for 40 children, half of whom were male (M Updated on: 10 Jun 2024, 03:06
Originally posted by GMATCoachBen on 08 Feb 2024, 20:56.
Last edited by Bunuel on 10 Jun 2024, 03:06, edited 2 times in total.
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Dropdown 1: both female and male children Dropdown 2: 13 but less than 14
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35% (medium)

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68% (01:53) correct 32% (02:11) wrong based on 1759 sessions

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The graph shows data for 40 children, half of whom were male (M) and half of whom were female (F), in each of three age groups: at least 9 but less than 10 years old, at least 11 but less than 12 years old, and at least 13 but less than 14 years old. These children were taught to perform chest compressions used in cardiopulmonary resuscitation (CPR). For CPR, ideal compression depth is 40 to 50 millimeters (mm). The children used a practice mannequin with sensors that recorded the average (arithmetic mean) depth achieved by each child. The results are plotted on the graph.

Based on the information provided, select from each drop-down menu the option that completes the statement most accurately.

In the study, age and average compression depth are positively correlated for 

Among the three age groups displayed, the median average compression depth is in the ideal range for CPR for the group of children who are at least  years old.­

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ID: 100478

Attachment:
Average Compression Depth by Age.png
Average Compression Depth by Age.png [ 165.11 KiB | Viewed 12349 times ]
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Dropdown 1: both female and male children Dropdown 2: 13 but less than 14
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The graph shows data for 40 children, half of whom were male (M 08 Feb 2024, 20:57
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­Video solution here: 




­
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jaswanthxvasudev
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The graph shows data for 40 children, half of whom were male (M 04 Mar 2025, 06:10
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Part 1—When the age increases in each category, the compression depth also increases for the majority of the points, which tells you that it is for both males and females age and average compression are positively Correlated.

Part 2 - This is evident from the graph. The median of the children whose average compression depths are in the ideal range of depths are children from at least 13 years old but less than 14 years old category.

Hope this helps :)
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